Since this is one of the top search results for M5Stack CircuitPython, I thought I'd link my example code for the M5Stack Dial here.
https://gitlab.com/slootsky/m5stack-dial-circuitpython
It has example code for the display, touch, neopixel the ring button and the rotary encoder.
I haven't found a circuitpython library for the NFC WS1850S reader yet.